A horrible Gran Turismo 5 port to the Xbox under another name due to licensing issues with SCEA they had to change select features such as removing certain cars using worse music mediocre graphics and 8-bit shadowing, get Gran Turismo 5.

Fixes most of the issues with 3, better graphics, better sound, better physics. Active aero, flames from the exhaust, more dust and smoke. Much more of a complete game than GT5 and better overall. What it lacks is Porsche.